Metal-working hammer



FIG. 1 is a perspective view of a metal-working hammer showing my new design, wherein the broken line showing of the handle is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is an enlarged right side elevational view;

FIG. 3 is a rear elevation;

FIG. 4 is a front elevation;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view.

The left side elevational view is a mirror image of the right side elevation. 

The ornamental design for a metal-working hammer, as shown and described. 